<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="UTF-8" />
    <meta http-equiv="X-UA-Compatible" content="IE=edge" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <title>Document</title>
  </head>
  <body>
    <button>点击获取xml</button>
    <script>
      let btn = document.querySelector("button");
      btn.onclick = function () {
        let xhr = new XMLHttpRequest();
        xhr.open("GET", "xml.php", true);
        xhr.onload = function () {
          console.log(xhr.responseXML);
          let res = xhr.responseXML.querySelector("name").innerHTML;
          console.log(res);
        };
        xhr.send();
      };
    </script>
  </body>
</html>
